The present invention relates to a chemical feeder that includes a housing (11) having a housing chamber (20) therein, a support plate (35) within the housing chamber that includes a plurality of support plate apertures (44), and a plurality of nozzles (69, 72) that each have a distributor head (78) that extends up through the support plate. Each distributor head distributes a feed liquid horizontally above the upper surface (38) of the support plate. The chemical feeder, with some embodiments, further includes a diverter plate (122) that extends upward from the support plate at an angle (125) of less than 90°. The diverter plate divides an upper housing chamber (146) into a first upper housing chamber (152) that includes solid chemical material, and a second upper housing chamber (155) that is free of solid chemical material.